A method for manufacturing a wheel axle of a utility vehicle such as a trailer, semi-trailer or a truck, wherein the wheel axle comprises a hollow axle body comprising a steel tubular wall having a thickness t and having a clamping region adapted to be clamped in use between clamping parts of the vehicle suspension by means of tensioning means. An interlocking recess is formed in the clamping region. The interlocking recess is formed by a forming process where a stamp member is pressed into the outer surface of the tubular wall so as to form an indent. The dimension of the stamp and the pressing force are such that the surface pressure on the stamped surface portion of the tubular wall locally exceeds the yield point to form the indent and the pressing force is such that the tubular wall portion adjacent to the interlocking recess is plastically sagging over a distance inwards which is at most corresponding to the thickness t of the tubular wall. Preferably the sagging distance inwards is within a range of 0 to 0.5 times the thickness t of the tubular wall. In an alternative method, the interlocking recess is formed by friction drilling a blind hole in the tubular wall of the axle body.
一种用于制造诸如挂车、半挂车或卡车的多用途车辆的轮轴的方法,其中轮轴包括中空的轴体,该中空的轴体包括厚度为t的钢制管状壁并且具有夹持区域,该夹持区域适于在使用中借助于张紧装置夹持在车辆悬架的夹持部件之间。互锁凹部被形成在夹持区域中。该互锁凹部通过将压模构件按压到管状壁的外表面中以形成凹口的成形工艺来形成。压模的尺寸和按压力使得管状壁的冲压表面部分上的表面压力局部地超过屈服点以形成凹口,并且按压力使得邻近于互锁凹部的管状壁部向内塑性凹陷一段距离,该距离至多对应于管状壁的厚度t。优选地,向内凹陷的距离在管状壁的厚度t的0至0.5倍的范围内。在替代方法中,互锁凹部通过在轴体的管状壁中摩擦钻出盲孔来形成。
Providing interlocking recess in tubular axle body of vehicle axle
在车轴的管状轴体中提供互锁凹部
2021-12-24
Patent
Elektronische Ressource
Chinesisch
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B21J FORGING , Schmieden / B21K MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS , Herstellen von Schmiede- oder Presserzeugnissen aus Metall, z.B. Hufeisen, Nieten, Bolzen oder Rädern / B60B VEHICLE WHEELS , Räder für Fahrzeuge |
PROVIDING AN INTERLOCKING RECESS IN A TUBULAR AXLE BODY OF A VEHICLE AXLE
Europäisches Patentamt | 2022
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